Window shade



April 1940 M. P. YOUKER WINDOW SHADE Filed May 16, less 2 Sheets-Sheet 1 w.v fifl. h.

INVENTOR.

April 16, 1940- M. P. YOUKER WINDOW SHADE Filed ma 16, 1938 2 Sheets-Sheet 2 Patented Apr. 16, 1940 UNITED STATES OFFlCE 2 Claims.

My invention pertains particularly to a folding metal shade which is to be attachedto the outside of dwellings or other habitable quarters to prevent the suns rays entering such quarters through windows.

An object of my invention is to provide a window shade which will serve as a storm blind as well as a sun shade, which will be sufiiciently weather resistant to permit its use throughout all of the seasons of the year, and which, when not in use, may be folded into a non-obstructive, neat appearing bundle. Other objects of my invention will be made apparent in the following specification.

My present invention constitutes certain improvements in a window shade which was disclosed by the present applicant under date of June 9, 1937, in U. S. patent application, Serial No. 147,313, now Patent No. 2,123,128, issued July 5, 1938.

My new invention will be understood from the following description, taken in connection with the accompanying drawings, in which:

Figure 1 illustrates in side elevation the complete shade properly disposed with respect to a Window in a wall of a building.

Figure 2 illustrates the complete shade in front elevation.

Figure 3 illustrates a cross-section of the shade taken along the plane 3-3 of Figure 2.

Figure 4 illustrates a cross-section along the plane 44 of Figure 2 and shows a plan view of a guide.

Figure 5 illustrates a cross-section taken alon the plane 5-5 of Figure 2 and shows a plan view of a guide.

Figure 6 illustrates in front elevation an optional form of shade.

Figure 7 illustrates a cross-section of the optional shade taken in the plane '|--l of Figure 6.

Figure 8 illustrates an end elevation of the optional shade, shown in Figure 6.

Referring to Figures 1 to 5 inclusive, of the drawings, a metal framework, which is made up of guide pipes 9 and 9-A; a pipe l0, and pipe nipples ll, l2, l3 and I4 and Ts l5, l6, l1, l8 and I9, is attached to the wall 20 of a building by means of lag screws 2|. Metal washers 22 are disposed between nipples l3, l4 and the wall. Two pantographs 23 and 24 are formed by metal lattice bars and pins. These pantographs are maintained in position with respect to each other by metal shades, which are each attached at their longitudinal extremities to a lattice bar in each of the pantographs.

Each shade is made up of a fiat rectangular piece of sheet metal 33, each long edge of which is tightly rolled over a piece of wire 34, these wires being extended beyond the metal sheet in which they are rolled to form pins on which the extremities of the lattice bars are pivoted. Cotter pins 35, are inserted in holes which are punched in each end of the metal sheet, and, straddling the metal sheet, project beyond it to form pins on which the centers of the lattice to bars are pivoted. That part of the cotter pin which projects beyond the lattice bars is' bent backward in the conventional manner, thus holding the lattice bars tightly against the extremities of the shades. 15

Both pantographs are suspended from pipe II], the upper lattice bar of each pantograph being pierced by a hole through which pipe It) extends. A pipe 26, to the extremities of which are attached guide pieces 21 and 2B, pierces the bottom lattice bar of each of the pantographs. Both guide pieces 21 and 28 are rigidly attached to pipe 26. The guide piece 28 is formed from strap iron bent in a U shape, the sides of the U being pierced by 'holes through which guide pipe 9A is disposed. The guide piece 21 is formed from a piece of sheet metal which is bent into the shape of two Us, having one common' side, and in one of which the guide pipe 9 is disposed and in the other one of which the pulley wheel 29 is disposed.

A pulley 29 is attached to guide piece 21. A cord 30 is attached to T I1 and leads thence through pulley 29, thence through pulley 3|, and thence upward and through a pulley 32 to a lug in any convenientlocation to which the extremity of this cord may be attached.

The "guide piece 28, being formed in the shape of a U through which the guide pipe 9A is disposed, permits horizontal movement of pipe 26 with respect to guide pipe 9A, while guide piece 21 is equipped with holes through which guide pipe 9 is disposed and fits neatly.

By means of pulling on the extremity of cord 5 30, the pantographs, together with the shades, may be raised to any desired position, limited by a position in a compact bundle at the top of the window, in which position they may be held by means of attaching the cord to the lug. Releas- 50 ing the cord will permit the pantographs, together with the shades, to descend by reason of their own weight, to any desired position. The cord 30 may be led through the wall 20 by means of a suitable conduit which will permit the adin my present invention, with respect to my previous invention herein referred to, consists of the manner in which the shades are fabricated and attached to the lattice bars. Rolling each horizontal edge of the metal sheet, which constitutes the body of a shade, around a metal rod, the extremities of which are extended beyond the metal sheet to serve as a means of attaching the shade to the supporting framework, is decidedly advantageous in that these metal rods serve to stiffen the shade, securely attach the shade to the framework and provide pins, which are fixed, insofar as the relative positionof the shades and the component parts of the framework are concerned, on which the members of the framework may be pivoted. While the cotter pin, which serves as a pivot pin through holes in the center of the lattice bars, is firmly connected to the shade and serves to prevent horizontal movement of the lattice bars on the projection of the rods on which the extremities of these lattice bars are pivoted as an added means of retaining the lattice bars on these projections of these rods, the extremities of these rods, which project beyond the lattice bars, may obviously be deformed by either flattening 0i riveting, by which operation additional means i'or retaining the lattice bars in proper position may be provided.

I may, in some cases, utilize the shade shown in Figures 6, 7 and 8 in preference to the fiat shades which have already been described. The

advantage to be obtained by this form of shade is particularly that longer spans between supporting frames may be used, in that this shade has more resistance to deflection from the horizontal. This shade, shown in Figures 6, 7 and 8, is similar in all respects to the flat shade already described, with the exception that the metal sheet from which it is formed is curved in the shape of a segment of a cylinder, the axis 01' which is horizontal; that no cotter pins are provided for attachment of the lattice bars to the shades, thelattice bars in this case being pivoted at their center about bolts 36, and the ends of the wires being deformed to retain the lattice bars. A strap iron stiffening piece 31, which is attached to the metal sheet from which the shade is made, is bent to the desired curvature and serves to hold the sheet in the desired shape.

While I have described in detail one form in which my new invention may be incorporated, it is understood that I do not intend to limit myself to those details, rather intend to claim broadly all of the advantages which are inherent in my new invention.

I claim:

1. A window shade comprising a series of substantially rigid slats, the longitudinal edges of said slats being rolled over and engaging cross rods, the extremities of which project longitudinally beyond the slats, a pair of transversely spaced lazy-tongs each formed of a plurality of lattice bars adapted to pivotally engage the projecting ends of respective cross rods, common means for securing the slats to respective lattice bars and for pivotally connecting the central portions of intersecting lattice bars, a pair of spaced vertical guide rods, means at one end of said guide rods for pivotally supporting the assembled lazy-tongs and slats, means secured to said lazy-tongs cooperating with said guide rods, and means for extending and retracting said lazy-tongs.

2. A window shade as claimed in claim 1 wherein said common means comprises a cotter pin extending from a substantially central opening in eachend of said slats through the intersecting portions of respective lattice bars, the legs of said cotter pin straddling the respective end portions of the slats.

MALCOLM P. YOUKER. 

